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The process in which oxidation number in...

The process in which oxidation number increase, is

A

Reduction

B

Hydrolysis

C

Oxidation

D

Decomposition

Text Solution

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The correct Answer is:
To solve the question "The process in which oxidation number increases is:", we will analyze the options provided and determine which one correctly describes the process of an increase in oxidation number. ### Step-by-Step Solution: 1. **Understanding Oxidation and Reduction**: - Oxidation refers to the loss of electrons by a substance, which results in an increase in its oxidation number. - Reduction refers to the gain of electrons by a substance, which results in a decrease in its oxidation number. 2. **Evaluating the Options**: - **Option A: Reduction**: - As discussed, reduction involves a gain of electrons, leading to a decrease in oxidation number. Therefore, this option is incorrect. - **Option B: Hydrolysis**: - Hydrolysis is a chemical reaction involving water that breaks down a compound. It does not specifically relate to changes in oxidation numbers, so this option is also incorrect. - **Option C: Oxidation**: - Oxidation involves the loss of electrons, which results in an increase in oxidation number. For example, if copper (Cu) is oxidized from Cu⁺ to Cu²⁺, its oxidation number increases from +1 to +2. This option is correct. - **Option D: Decomposition**: - Decomposition refers to the breakdown of a compound into simpler substances. It does not specifically relate to changes in oxidation numbers, so this option is incorrect. 3. **Conclusion**: - The process in which the oxidation number increases is correctly identified as **oxidation**. ### Final Answer: The process in which oxidation number increases is **oxidation**.
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Knowledge Check

  • Which of the following statements is correct regarding redox reactions ? (A)An increase in oxidation number of an element is called reduction (B)A decrease in oxidation number of an element is called oxidation. (C)A reagent which lowers the oxidation number of an element in a given substance is reductant. (D)A reagent which increases the oxidation number of an element in a given substance is reductant

    A
    An increase in oxidation number of an element is called reduction
    B
    A decrease in oxidation number of an element is called oxidation.
    C
    A reagent which lowers the oxidation number of an element in a given substance is reductant.
    D
    A reagent which increases the oxidation number of an element in a given substance is reductant .

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    The oxidation number of an element in a compound decides its nature to acts as oxidant or reductant. Oxidation number is defined and the residual charge which an atom has or appears to have in a molecule whenal other atoms are removed from the molecule as ions. Oxidation number is frequently used interchangebly with oxidation state. The stock notations of oxidation number are based on the periodic property-electronegativity. An atom in a molecule can be assigned positive, negative or zero oxidation number by considering its environment. In few cases, oxidation number can evenn be fractional. Oxidation number of Y in YBa_(2)Cu_(2)O_(7) is +3, then oxidation number of Cu is:

    The oxidation number of an element in a compound decides its nature to acts as oxidant or reductant. Oxidation number is defined and the residual charge which an atom has or appears to have in a molecule whenal other atoms are removed from the molecule as ions. Oxidation number is frequently used interchangebly with oxidation state. The stock notations of oxidation number are based on the periodic property-electronegativity. An atom in a molecule can be assigned positive, negative or zero oxidation number by considering its environment. In few cases, oxidation number can evenn be fractional. Oxidation number of oxygen in K_(2)O, K_(2)O_(2),KO_(2),KO_(3) are in the order:

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